55535401601 has 2 divisors, whose sum is σ = 55535401602. Its totient is φ = 55535401600.

The previous prime is 55535401501. The next prime is 55535401609. The reversal of 55535401601 is 10610453555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50423151601 + 5112250000 = 224551^2 + 71500^2 .

It is a cyclic number.

It is not a de Polignac number, because 55535401601 - 2³⁴ = 38355532417 is a prime.

It is not a weakly prime, because it can be changed into another prime (55535401609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27767700800 + 27767700801.

It is an arithmetic number, because the mean of its divisors is an integer number (27767700801).

Almost surely, 2^55535401601 is an apocalyptic number.

It is an amenable number.

55535401601 is a deficient number, since it is larger than the sum of its proper divisors (1).

55535401601 is an equidigital number, since it uses as much as digits as its factorization.

55535401601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 55535401601 in words is "fifty-five billion, five hundred thirty-five million, four hundred one thousand, six hundred one".